Tyro Capital Management LLC holds a focused book of 23 stocks worth $395.0M as of Q1 2026 (disclosed Jul 6, 2026, a ~45-day 13F lag). This quarter they opened Western Digital Corp. Their largest long position is Establishment Labs Holdings at 17% of the equity book. They also disclosed $495.5M in put options (a bearish bet) and $30.1M in call options (bullish), shown separately below and excluded from the equity book.
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curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1915395/holdings"
Use Arkolith to show Tyro Capital Management LLC's latest holdings, largest changes, and filing provenance.
Top-heavy: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
100% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Establishment Labs Hldgs Inc COM | $65.4M | 1.15M | 16.5% | ▲+6.8% Added · +74K sh | |
| 2 | Carpenter Technology Corp COM | $53.2M | 135.0K | 13.5% | ▲+6.6% Added · +8K sh | |
| 3 | CRH PLC ORD | $40.5M | 385.5K | 10.3% | ▲+6.6% Added · +24K sh | |
| 4 | Sharkninja Inc COM SHS | $40.4M | 381.9K | 10.2% | ▲+6.6% Added · +24K sh | |
| 5 | Crocs Inc COM | $32.2M | 387.7K | 8.1% | ▲+6.6% Added · +24K sh | |
| 6 | Ars Pharmaceuticals Inc COM | $23.8M | 2.97M | 6.0% | ▲+49% Added · +974K sh | |
| 7 | Construction Partners Inc COM CL A | $19.5M | 175.9K | 4.9% | ▲+6.6% Added · +11K sh | |
| 8 | Western Digital Corp COM | $16.1M | 59.5K | 4.1% | ▲New New position | |
| 9 | Sandisk Corp COM | $15.9M | 25.0K | 4.0% | ▲New New position | |
| 10 | Celsius Hldgs Inc COM NEW | $11.2M | 316.9K | 2.8% | ▲+6.6% Added · +20K sh | |
| 11 | Lumentum Hldgs Inc COM | $10.9M | 15.5K | 2.7% | ▲New New position | |
| 12 | Lululemon Athletica Inc COM | $9.6M | 62.5K | 2.4% | ▲+6.7% Added · +4K sh | |
| 13 | Kla Corp COM NEW | $9.0M | 6.1K | 2.3% | ▲New New position | |
| 14 | MKS Inc. COM | $8.5M | 36.9K | 2.1% | ▲New New position | |
| 15 | ASML Hldg NV NY REGISTRY SHS | $8.1M | 6.1K | 2.0% | ▲New New position | |
| 16 | Lam Research Corp COM NEW | $8.1M | 37.9K | 2.0% | ▲New New position | |
| 17 | Ultra Clean Hldgs Inc COM | $7.4M | 119.1K | 1.9% | ▲New New position | |
| 18 | Cytokinetics Inc COM NEW | $4.3M | 64.7K | 1.1% | ▲+6.6% Added · +4K sh | |
| 19 | Rivian Automotive Inc COM CL A | $3.9M | 257.4K | 1.0% | ▲New New position | |
| 20 | The Trade Desk Inc COM CL A | $2.0M | 87.8K | 0.5% | ▲New New position | |
| 21 | Intel Corp COM | $2.0M | 44.8K | 0.5% | ▲New New position | |
| 22 | Hinge Health Inc CL A | $1.9M | 49.6K | 0.5% | ▲New New position | |
| 23 | Sonida Senior Living Inc COM | $1.2M | 36.5K | 0.3% | ▲New New position |
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| PUT · bearish | SS SPDR S&P 500 ETF TRUST-USSPY | $424.5M | 653K |
| PUT · bearish | ESTABLISHMENT LABS HOLDINGSESTA | $71.0M | 1.3M |
| CALL · bullish | COGENT COMMUNICATIONS HOLDINCCOI | $30.1M | 1.6M |
13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above.
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | Jul 6, 2026 | 26 | $920.6M | 13F-HR/A |
| Q4 2025 | Dec 31, 2025 | Feb 13, 2026 | 14 | $540.6M | 13F-HR/A |
| Q3 2025 | Sep 30, 2025 | Nov 13, 2025 | 10 | $269.2M | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 8, 2025 | 10 | $254.9M | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 15, 2025 | 14 | $268.4M | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 14, 2025 | 13 | $305.4M | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.